package cn.itcast.bos.service.base.impl;

import java.util.List;
import java.util.Set;

import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import cn.itcast.bos.dao.base.CourierRepository;
import cn.itcast.bos.domain.base.Courier;
import cn.itcast.bos.service.base.CourierService;

@Service
@Transactional
public class CourierServiceImpl implements CourierService {

	@Autowired
	private CourierRepository courierRepository;
	@Override
	public void save(Courier courier) {
		courierRepository.save(courier);
	}
	

	@Override
	public Page<Courier> pageQuery(Specification<Courier> specification,
			Pageable pageable) {
		return courierRepository.findAll(specification,pageable);
	}


	@Override
	public void delflag(String sign,String ids) {
		String[] idString=ids.split(",");
		Character signChar=null;
		if (sign.equals("1")) {
			 signChar = sign.charAt(0);
		}
		for (String string : idString) {
			int id = Integer.parseInt(string);
			courierRepository.updateFlag(signChar,id);
		}
	}


	@Override
	public List<Courier> findNoAssociation() {
		Specification<Courier> specification=new  Specification<Courier>() {

			@Override
			public Predicate toPredicate(Root<Courier> root,
					CriteriaQuery<?> query, CriteriaBuilder cb) {
				Predicate predicate = cb.isEmpty(root.get("fixedAreas").as(Set.class));
				return predicate;
			}
		};
		return courierRepository.findAll(specification);
	}


	@Override
	public List<Courier> fixedAreaAssociationCourier(String fixedAreaId) {
		return courierRepository.findCourierByFixedAreaId(fixedAreaId);
	}


	

}
